[FFmpeg-cvslog] aarch64: assembler in clang-3.4 ignores the division by two

[Janne Grunau]

ffmpeg | branch: master | Janne Grunau <janne-libav at jannau.net> | Tue May 13 15:47:51 2014 +0200| [9aa4592076d4dbb29d1198b0e258f9f85c0c00b5] | committer: Janne Grunau

aarch64: assembler in clang-3.4 ignores the division by two

Values are positive powers of two, so just replace it with right shift.

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=9aa4592076d4dbb29d1198b0e258f9f85c0c00b5
---

 libavcodec/aarch64/fft_neon.S |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavcodec/aarch64/fft_neon.S b/libavcodec/aarch64/fft_neon.S
index 5189bfb..9802349 100644
--- a/libavcodec/aarch64/fft_neon.S
+++ b/libavcodec/aarch64/fft_neon.S
@@ -348,7 +348,7 @@ function fft\n\()_neon  align=6
         sub             x0,  x28, #\n4*2*8
         ldp             x28, x30, [sp], #16
         movrel          x4,  X(ff_cos_\n)
-        mov             x2,  #\n4/2
+        mov             x2,  #\n4>>1
         b               fft_pass_neon
 endfunc
 .endm